This study was carried out to estimation the heritabilities and genetic trend for body measurement type data of reproductive hanwoo in Gyeongsang province, korea. This study used body measurement type on 62,137 heads of reproductive hanwoo which was from 2005 to 2008 at Korea Animal Improvement Asso...
This study was carried out to estimation the heritabilities and genetic trend for body measurement type data of reproductive hanwoo in Gyeongsang province, korea. This study used body measurement type on 62,137 heads of reproductive hanwoo which was from 2005 to 2008 at Korea Animal Improvement Association were measure and analysed. The body measurement type considered Wither height, Rump height, Body Length, Chest depth, Chest width, Rump length, Rump width, Thurl width, Hipbone width, Chest girth. Estimate of genetic parameter and trend for body measurement typeby using REML algorithm in REMLF90 program. Environmental effect were analysed by the year and season of birth, by year and season of measurement and month of measurement. The Results obtained from this study were summarized as follows; 1. The means and standard deviations of the body measurement type with wither height, rump height, body length, chest depth, chest width, rump length, rump width, thurl width, hipbone width, chest girth were 124.51±0.008㎝, 125.51±0.008㎝, 144.43±0.012㎝, 67.51±0.007㎝, 40.33±0.011㎝, 49.27±0.010㎝, 44.71±0.007㎝, 42.44±0.007㎝, 26.73±0.006㎝, 176.67±0.019㎝ respectively. 2. The analysis variance of body measurement type and the test of significance were upper significance(P<0.01) for body measurement type in measure the year and measure the season. Also, upper significance for body measurement type in year of birth and season of birth. The significance of age at measure(month) were upper significance all of traits. 3. All of body measurement type were highly significance(p<0.01) for year of birth, season of birth, and year of measurement, season of measurement and age at measurement(month). But, the chest girth was significance(p<0.05) for season of measurement. 4. The effect of the year of birth with rump height, wither height were highly significance in 2005. The effect of the year of birth with thurl width, hipbone width and chest girth were highly significance in 2003. The effect of the year of birth with body length, chest width were highly significance in 2004. 5. The effect of season of birth with wither height and rump height were highly significance that born in fall and winter. The effect of measure the season with body length, chest depth, chest width, rump length, rump width, thurl width, hipbone width, chest girth were highly significance that born in winter. 6. The effect of measure the year with wither height and rump height were indicate that highly significance that born in 2005. The effect of measure the year with body length, chest depth, chest width, rump length, rump width, thurl width, hipbone width, chest girth were indicate that highly significance that born in 2008. 7. The effect of measure the season with chest girth was indicate that not significance for the season variation. The wither height was indicate that highly significance in spring. The rump width and thurl width, hipbone width and chest depth were indicate that highly significance in fall, respectively. The body length was indicate that highly significance in summer. The chest width, rump length and rump height were indicate that highly significance in spring, respectively. 8. The age at the measurement month include as a covariation in this study had a significance influence on all of body measurement type. Also, the age at the measurement month include as fixed effect in this study had a significance on all of body measurement type. But, between 30 and 33age at month, between 40 and 43 age at month were indicate that not significance for age at the measurement month ,respectively. 9. The heritability range of body measurement type with wither height, rump height, body length, chest depth, chest width, rump length, rump width, thurl width, hipbone width, chest girth were indicate that 0.16∼0.69 in REML method. 10. The genetic correlation of body measurement type were indicate that positive correlation in general, but, the hipbone width with rump length, chest width, rump length, and chest with chest depth, and rump length with chest depth were indicate that negative correlation, respectively. The phenotype correlation of body measurement type were indicate that positive correlation in all of traits. and, As result of estimation by year for genetic trend of body measurement type were indicate that irregular tendency.
This study was carried out to estimation the heritabilities and genetic trend for body measurement type data of reproductive hanwoo in Gyeongsang province, korea. This study used body measurement type on 62,137 heads of reproductive hanwoo which was from 2005 to 2008 at Korea Animal Improvement Association were measure and analysed. The body measurement type considered Wither height, Rump height, Body Length, Chest depth, Chest width, Rump length, Rump width, Thurl width, Hipbone width, Chest girth. Estimate of genetic parameter and trend for body measurement typeby using REML algorithm in REMLF90 program. Environmental effect were analysed by the year and season of birth, by year and season of measurement and month of measurement. The Results obtained from this study were summarized as follows; 1. The means and standard deviations of the body measurement type with wither height, rump height, body length, chest depth, chest width, rump length, rump width, thurl width, hipbone width, chest girth were 124.51±0.008㎝, 125.51±0.008㎝, 144.43±0.012㎝, 67.51±0.007㎝, 40.33±0.011㎝, 49.27±0.010㎝, 44.71±0.007㎝, 42.44±0.007㎝, 26.73±0.006㎝, 176.67±0.019㎝ respectively. 2. The analysis variance of body measurement type and the test of significance were upper significance(P<0.01) for body measurement type in measure the year and measure the season. Also, upper significance for body measurement type in year of birth and season of birth. The significance of age at measure(month) were upper significance all of traits. 3. All of body measurement type were highly significance(p<0.01) for year of birth, season of birth, and year of measurement, season of measurement and age at measurement(month). But, the chest girth was significance(p<0.05) for season of measurement. 4. The effect of the year of birth with rump height, wither height were highly significance in 2005. The effect of the year of birth with thurl width, hipbone width and chest girth were highly significance in 2003. The effect of the year of birth with body length, chest width were highly significance in 2004. 5. The effect of season of birth with wither height and rump height were highly significance that born in fall and winter. The effect of measure the season with body length, chest depth, chest width, rump length, rump width, thurl width, hipbone width, chest girth were highly significance that born in winter. 6. The effect of measure the year with wither height and rump height were indicate that highly significance that born in 2005. The effect of measure the year with body length, chest depth, chest width, rump length, rump width, thurl width, hipbone width, chest girth were indicate that highly significance that born in 2008. 7. The effect of measure the season with chest girth was indicate that not significance for the season variation. The wither height was indicate that highly significance in spring. The rump width and thurl width, hipbone width and chest depth were indicate that highly significance in fall, respectively. The body length was indicate that highly significance in summer. The chest width, rump length and rump height were indicate that highly significance in spring, respectively. 8. The age at the measurement month include as a covariation in this study had a significance influence on all of body measurement type. Also, the age at the measurement month include as fixed effect in this study had a significance on all of body measurement type. But, between 30 and 33age at month, between 40 and 43 age at month were indicate that not significance for age at the measurement month ,respectively. 9. The heritability range of body measurement type with wither height, rump height, body length, chest depth, chest width, rump length, rump width, thurl width, hipbone width, chest girth were indicate that 0.16∼0.69 in REML method. 10. The genetic correlation of body measurement type were indicate that positive correlation in general, but, the hipbone width with rump length, chest width, rump length, and chest with chest depth, and rump length with chest depth were indicate that negative correlation, respectively. The phenotype correlation of body measurement type were indicate that positive correlation in all of traits. and, As result of estimation by year for genetic trend of body measurement type were indicate that irregular tendency.
주제어
#Hanwoo Body measurement type Genetic parameter Trend Gyeosang province 경상권역 번식한우 체형형질 유전모수 유전적 변화
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